C111123313121111121111331333133313331333133313331333133112111112113313221   >>    C11112331312111112111133133313331333133313331333133313311211111211331322   <<    C111123313121111121111331333133313331333133313331333133112111112113313223   >>      C111123313121111121111331333133313331333133313331333133112111112113313222   >>